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Introducing the KATO Linear Torque Arm

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The World's Smallest Tangless Insert "0-80"

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KATO Linear Torque Arm

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World's Smallest Tangless Inserts

KATO Fastening Systems

The original inventor and manufacturer of the bi-directional Tangless® screw thread insert.

Tangless CoilThread inserts are a helically-coiled, bi-directional, wire design; that install using a drive notch located at either end of the coil insert instead of a tang located at one end of the inserts.

KATO Tangless inserts are identical, in form, fit, and function to conventional tanged inserts (e.g.,CoilThread, Helicoil & Recoil). In fact,Tangless CoilThread inserts are identical to tanged inserts in every way except for their method of installation & removal. KATO Tangless inserts even have the same procurement specification (NASM8846 for unified sizes and MA1565 for metric sizes) as tanged inserts. KATO Tangless inserts eliminate tang break-off and retrieval, are easily adjusted after installation, and offer non-destructive removal. In addition, Helicoil and Recoil Tangless inserts are manufactured under license from KATO!